Current File : //usr/src/kernels/3.10.0-1160.83.1.el7.centos.plus.x86_64/include/drm/ttm/ttm_set_memory.h
/**************************************************************************
*
* Copyright (c) 2018 Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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**************************************************************************/
/*
* Authors: Huang Rui <ray.huang@amd.com>
*/
#ifndef TTM_SET_MEMORY
#define TTM_SET_MEMORY
#include <linux/mm.h>
#ifdef CONFIG_X86
static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
{
return set_pages_array_wb(pages, addrinarray);
}
static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
{
return set_pages_array_wc(pages, addrinarray);
}
static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
{
return set_pages_array_uc(pages, addrinarray);
}
static inline int ttm_set_pages_wb(struct page *page, int numpages)
{
return set_pages_wb(page, numpages);
}
static inline int ttm_set_pages_wc(struct page *page, int numpages)
{
unsigned long addr = (unsigned long)page_address(page);
return set_memory_wc(addr, numpages);
}
static inline int ttm_set_pages_uc(struct page *page, int numpages)
{
return set_pages_uc(page, numpages);
}
#else /* for CONFIG_X86 */
#if IS_ENABLED(CONFIG_AGP)
#include <asm/agp.h>
static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
{
int i;
for (i = 0; i < addrinarray; i++)
unmap_page_from_agp(pages[i]);
return 0;
}
static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
{
int i;
for (i = 0; i < addrinarray; i++)
map_page_into_agp(pages[i]);
return 0;
}
static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
{
int i;
for (i = 0; i < addrinarray; i++)
map_page_into_agp(pages[i]);
return 0;
}
static inline int ttm_set_pages_wb(struct page *page, int numpages)
{
int i;
for (i = 0; i < numpages; i++)
unmap_page_from_agp(page++);
return 0;
}
#else /* for CONFIG_AGP */
static inline int ttm_set_pages_array_wb(struct page **pages, int addrinarray)
{
return 0;
}
static inline int ttm_set_pages_array_wc(struct page **pages, int addrinarray)
{
return 0;
}
static inline int ttm_set_pages_array_uc(struct page **pages, int addrinarray)
{
return 0;
}
static inline int ttm_set_pages_wb(struct page *page, int numpages)
{
return 0;
}
#endif /* for CONFIG_AGP */
static inline int ttm_set_pages_wc(struct page *page, int numpages)
{
return 0;
}
static inline int ttm_set_pages_uc(struct page *page, int numpages)
{
return 0;
}
#endif /* for CONFIG_X86 */
#endif
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